Question

why is the earth called a unique planet ?
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Answer 1

Answer:

Earth is the only known planet of the solar system which supports life. Earth has oxygen, water and temperature. ... All these conditions which are supporting life, like presence of water and air in a good proportion, presence of life supporting gas and balanced temperature make earth a unique planet.

Answer 2

among all the planted only the planet which has life for living creatures the only planet which has water, animals,plants,o2 and etc

so that's why earth is unique planet